Telephone handset



FIG. 1 is a left side elevation of the design, which is a mirror image of the right side elevation of the design;

FIG. 2 is a front elevation of the design;

FIG. 3 is a top elevation of the design;

FIG. 4 is a bottom elevation of the design;

FIG. 5 is a rear elevation of the design;

FIG. 6 is a perspective of the design at an angle from the rear, and;

FIG. 7 is a perspective of the design at an angle from the front. 

The ornamental design for a telelphone handset, as shown and described. 